Examine source code of Green greeting

{
  "theme": {
    "images": {
      "theme_frame": "-1.jpg"
    },
    "colors": {
      "frame": "#aaadaa",
      "tab_background_text": "#132412"
    }
  },
  "version": "2.0",
  "name": "Green greeting",
  "manifest_version": 2,
  "description": "Green greeting"
}